black

#000000

#178B5A

#178B5A

Contrast Ratio

4.88:1

Delta E

68.86

Very Different

50:50 Mix

Color Values

Format #000000 #178B5A
HEX #000000 #178B5A
RGB 0, 0, 0 23, 139, 90
HSL 0.0, 0.0%, 0.0% 154.7, 71.6%, 31.8%
HSV 0.0, 0.0%, 0.0% 154.7, 83.5%, 54.5%
CMYK 0%, 0%, 0%, 100% 83.5%, 0.0%, 35.3%, 45.5%
OKLCH 0.0 0.0 0.0 0.5641 0.1236 158.8

Contrast & Accessibility

4.88:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #178B5A → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #178B5A

Color Difference (Delta E)

68.86 Very Different
0 — Identical 5 — Similar 25 — Noticeable 100 — Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #178B5A);
background: linear-gradient(135deg, #000000, #178B5A);

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